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BMW 5-Series (G30) Forum Engine, Exhaust, Drivetrain, Tuning Modifications Catted downpipe

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      07-21-2019, 04:33 PM   #1
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Catted downpipe

Anybody running a catted downpipe on a B58?

Any comments on brand, power, sound, CEL ???
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      07-22-2019, 12:59 PM   #2
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Hi,
We offer Evolution Racewerks, VRSF, Stone & HJS catted downpipe for the 540
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      07-22-2019, 04:38 PM   #3
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Quote:
Originally Posted by mike@x-ph.com View Post
We offer Evolution Racewerks, VRSF, Stone & HJS catted downpipe for the 540
Good to know but I am looking for feedback from a forum member that has a downpipe installed on their car.
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      07-22-2019, 11:59 PM   #4
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Quote:
Originally Posted by Dobie Dog View Post
Good to know but I am looking for feedback from a forum member that has a downpipe installed on their car.
+1
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      07-25-2019, 05:40 PM   #5
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Catted downpipe anyone??
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      07-28-2019, 02:06 PM   #6
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Akrapovic designed for m140i b58, fitted in to g30 540i xdrive.
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      07-29-2019, 05:14 PM   #7
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Anybody running a catted downpipe on a B58 was the original question?

No responses from G30 540 owners.

Let's try G30 550 owners????

Any comments on brand, power, sound, CEL ???
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      07-29-2019, 09:28 PM   #8
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Not sure the brands off the top of my head, but friend ran a catted and non-catted on his 340i (same DPs as the 540i). Only dyno'd FBO with meth on a jb4 but should make around 20whp usually on just a DP. He said power between the two was the same and no CEL without a spacer on the catted. I'm picking up a VRSF catted myself in a couple weeks.

I know it's not the same but might be helpful. You can listen to his sound clips on YouTube:

https://www.youtube.com/channel/UC9P...c3x5lybH8sFoNw
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      07-30-2019, 05:53 AM   #9
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Quote:
Originally Posted by 0bLiViOuS View Post
I'm picking up a VRSF catted myself in a couple weeks.
If you could report back after you install the VRSF that would be great. My main concern is the CEL issues some have.
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      07-30-2019, 12:04 PM   #10
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I'll let you know for sure. I've got an MPe Exhaust but will try to get a sound clip too.
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      08-01-2019, 09:52 PM   #11
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I have been testing some new Brand downpipe that has 50cells cat.
The manufacturer's said that it shouldn't trigger CEL, but after 4 weeks, it did.
So, they sent me another one that I have yet to test.
Hopefully I'll be able to swap it out next week and do a test again.

But, in General, Hi-Flow 200-300 Cells Cat downpipe will still trigger CEL for US spec cars.
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